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[Bug 1894836] Re: kernel panic using hvf with CPU passthrough
From: |
Jordan Williams |
Subject: |
[Bug 1894836] Re: kernel panic using hvf with CPU passthrough |
Date: |
Tue, 08 Sep 2020 13:06:28 -0000 |
** Tags added: macos
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https://bugs.launchpad.net/bugs/1894836
Title:
kernel panic using hvf with CPU passthrough
Status in QEMU:
New
Bug description:
Host Details
QEMU 5.1 (Homebrew)
macOS 10.15.6 Catalina
Late 2014 iMac
i5-4690 @ 3.5 GHz
8 GB RAM
Guest Details
Ubuntu Desktop 20.04.1 Installer ISO
Problem
Whenever I boot with "-accel hvf -cpu host", the Ubuntu desktop installer
will immediately crash with a kernel panic after the initial splash screen.
See the attached picture of the kernel panic for more details.
Steps to recreate
From
https://www.jwillikers.com/posts/virtualize_ubuntu_desktop_on_macos_with_qemu/
1. Install QEMU with Homebrew.
$ brew install qemu
2. Create a qcow2 disk image to which to install.
$ qemu-img create -f qcow2 ubuntu2004.qcow2 60G
3. Download the ISO.
$ curl -L -o ubuntu-20.04.1-desktop-amd64.iso
https://releases.ubuntu.com/20.04/ubuntu-20.04.1-desktop-amd64.iso
4. Run the installer in QEMU.
$ qemu-system-x86_64 \
-accel hvf \
-cpu host \
-smp 2 \
-m 4G \
-usb \
-device usb-tablet \
-vga virtio \
-display default,show-cursor=on \
-device virtio-net,netdev=vmnic -netdev user,id=vmnic \
-audiodev coreaudio,id=snd0 \
-device ich9-intel-hda -device hda-output,audiodev=snd0 \
-cdrom ubuntu-20.04.1-desktop-amd64.iso \
-drive file=ubuntu2004.qcow2,if=virtio
Workaround
Emulating the CPU with "-cpu qemu64" does not result in a kernel panic.
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